• AlternateCrossCompilation2

Installation of a Cross-Compiler (IA32 -> Itanium)

By Marco Aurélio Stelmar Netto (CPAD-PUCRS/HP)

From a howto posted here

This document is a cookbook that describes how to build a cross-compiler for the compilation of 64 bit Itanium code on an IA32 machine. The following steps were tested on Debian 3.0r1 and Slackware 8.0 GNU/Linux distributions using the bash shell.

Get all the include and library files of an Itanium machine (target machine)

Login in an Itanium machine and execute the following steps:

       cd /tmp
       mkdir files files/include files/lib
       cp /usr/include/* files/include/ -a
       cp /lib/* /usr/lib/* files/lib -a
       tar zcvf files.tgz files

Transfer the files.tgz file to the IA32 machine where you will build the cross-compiler. The following steps are executed on an IA32 machine:

Choose a directory where you want to install the cross compiler

Let's choose the /usr/local/ia64-linux/ directory. We will refer it as $IA64DIR.

       mkdir /usr/local/ia64-linux/

1. Untar the files.tgz file (libraries and includes from the Itanium machine)

       cd $IA64DIR
       tar zxvf files.tgz
       rm files.tgz

Configure the libc.so file

Use an editor to set up the GROUP variable in $IA64DIR/lib/libc.so file. The original content of the GROUP variable could be for example:

        GROUP ( /lib/libc.so.6.1 /usr/lib/libc_nonshared.a )

Set it to:

        GROUP ( /usr/local/ia64-linux/lib/libc.so.6.1 /usr/local/ia64-linux/lib/libc_nonshared.a )

Install the binutils package

Download binutils-2.14.tar.bz2 file and move it to /tmp

        cd /tmp
        tar jxvf binutils-2.14.tar.bz2
        cd binutils-2.14/
        ./configure --target=ia64-linux --prefix=/usr/local
        make
        cd ld/
        make clean
        make LIB_PATH=$IA64DIR/lib
        cd ..
        make install

Install the gcc package

Download gcc-3.2.3.tar.gz and move it to /tmp

        cd /tmp
        tar zxvf gcc-3.2.3.tar.gz
        cd gcc-3.2.3/
        export PATH=$PATH:/usr/local/bin
        (necessary for gcc to find the ia64-linux-nm program)
        (use 'setenv PATH /usr/local/bin:$PATH' instead of 'export' if you use csh or tcsh shell)
        ./configure --enable-threads=posix --with-libs=$IA64DIR/lib/ \
        --with-headers=$IA64DIR/include --target=ia64-linux \
        --prefix=/usr/local --enable-languages=c
        make
        make install

That's all!

Your gcc (cross) will be available in $IA64DIR/bin/gcc